Cold Cathode Fluorescent Lamp is abbreviated as CCFL. The Chinese translation is called cold cathode fluorescent tube. It has the advantages of high power, high brightness and low energy consumption. It is widely used in displays, lighting and other fields.

　　1, backlight: TFT LCD screen, LCD TV, LCD computer monitor, portable DVD, car, train, aircraft-borne TV, GPS display, handheld computer game consoles and industrial instrument display backlight.

　　2. Advertising light boxes and decorative lighting.

　　3. Office automation equipment.

　　4, modified car lights (angel eye lights)

　　5, high-end hotels, clubs, villa interior decoration dark trough light source.

　　The cold cathode lamp tube (shown in Figure 1) is filled with a mixed gas of inert gas Ne + Ar in a glass tube containing a trace amount of mercury vapor (several mg), and a phosphor is coated on the inner wall of the glass, and a high pressure is applied between the two electrodes. In the high-frequency electric field, the mercury vapor is excited in the electric field to produce an energy-releasing luminescence effect, and the ultraviolet light having a wavelength of 253.7 nm is emitted, and the phosphor atoms of the inner wall are excited by the ultraviolet light to raise the energy level thereof, and when the atom is reversed, the energy is low. The visible light is emitted in the order (this visible wavelength is determined by the characteristics of the phosphor material).

CCFL

　　Cold cathode fluorescent lamp cold cathode lamp is a new type of illumination source; because CCFL lamp has small lamp tube, simple structure, small temperature rise of lamp surface, high brightness of lamp surface, easy to process into various shapes (straight tube shape) , L-shaped, U-shaped, ring-shaped, etc.); long service life, good color rendering, uniform illumination, etc.; therefore, it is also an ideal light source for TFT-LCD (liquid crystal panel), and is widely used in advertising light boxes, scanners and backlights. Source and other uses.